diff --git a/tests/README.md b/tests/README.md
index 938d68f3f..b9b064ea9 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -29,6 +29,13 @@ Run:
 docker run --network=host node-redis-test
 ```
 
+to run only selected tests use:
+
+```
+docker run --network=host node-redis-test npm run test -w ./packages/client -- --redis-version=2.8 -g <regex>
+```
+
+In general, you can add this way any option from [mocha framework](https://mochajs.org/#command-line-usage).
 
 ## Jedis
 Integration test for the Jedis client.
diff --git a/tests/node-redis.Dockerfile b/tests/node-redis.Dockerfile
index f580aff1f..c5c11f2c4 100644
--- a/tests/node-redis.Dockerfile
+++ b/tests/node-redis.Dockerfile
@@ -9,10 +9,6 @@ RUN git clone -b dragonfly https://github.com/dragonflydb/node-redis.git
 
 WORKDIR /app/node-redis
 
-RUN npm install
+RUN npm install && npm run build:tests-tools
 
-RUN npm run build -w ./packages/client
-
-RUN npm run build -w ./packages/test-utils
-
-CMD npm run test -w ./packages/client -- --redis-version=2.8 
+CMD npm run test -w ./packages/client -- --redis-version=2.8